But the competition hasn’t stopped GEVEY from releasing a new SIM interposer. In fact, it’s stepping up its game. The new Ultra 5.1 for the GSM iPhone 4 supports more basebands and has more features than ever before…

GEVEY Ultra 5.1 works with any iOS version between 4.1 and and 5.1

It works with 1.59, 2.10, 3.10.1, 4.10.1, 4.11.08, and 4.12.01 basebands.

As with previous interposers, the GEVEY Ultra 5.1 only works with jailbroken iPhones. And although Furious Mod will keep you from having to dial 112 after every reboot, we are assuming you still have to do so initially — which is illegal in some countries.

Regardless, if you don’t qualify for AT&T’s unlocking terms, and you can’t get the SAM method to work, the GEVEY Ultra 5.1 appears to be a viable option. And if you’re interested, it looks like Applenberry has them in stock for just $49.99.

I have iPhone 4S Verizon, i tried to unlock it with SAM and the status on Apple server is showing active, sometimes my Warid Sim (Pakistan carrier) shows signals as well but no carrier name with it. After all this i am still unable to use my iPhone 4S CDMA Verizon with SAM. Any Solution????